Work

Dosimetric comparison of DEFGEL and PAGAT formulae paired with an MRI acquisition

Year: 2017

Type: conference-paper

Abstract: Normoxic Polyacrylamide Gels, or nPAGs, are 3D gel dosimeters that measure dose through the process of radiation-induced polymerization. Two nPAG formulae are DEFGEL and PAGAT, which are very similar, but differ mainly due to different weight fractions of monomers. The dosimetric resolutions of the two formulae when paired with a Spin-Echo (SE) MRI sequence and a monoexponential fit were compared over a range of 0-15 Gy. It was found that in the dose range 0-6 Gy the PAGAT formula generally showed a much finer dose resolution, while the DEFGEL formula showed a finer resolution from 8-15 Gy.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/847/1/012012

Authors: C Matrosic, A McMillan, J Holmes, B Bednarz, W Culberson

Institution: University of Wisconsin–Madison

Language: English

Topic: Advanced Radiotherapy Techniques

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: diamond

Funders: Sun Nuclear Corporation, National Institutes of Health, National Cancer Institute